Central Heating systems

[Michael]

Does anyone know how many litres of water is heated in a typical 3-bed semi central heating system?

Micheal

[Ed Sirett]

Probably less than 100 litres.

[woodglass]

Non if it's turned off ! :-)

[Gav]

omg-go to the shed, get a few 1's 3 2's and a bag of zero's

[Ed Sirett]

I'm not sure that I get where you're coming from on this one. Do you mean the matter is entirely irrelevant? Or do you mean that my response was simply numbers taken from the air? Either way I don't agree.

[Gav]

certainly wasn't trying to humiliate you, i was merely saying that there could be alot or a bit, depending on size, age etc etc. i don't know why the question was asked but it prolly makes no difference unless you are wanting to make the system work at maximum efficiency by eradicating long pipe runs that could be routed to serve rads close by. if you were wanting to be super efficient you wouldn't consider the water content too much more the lagging of pipes, insulating walls, roof space etc. if it is the inhibitor levels that are required then there are kits that annalyze this and even electronic gadgets that do it too!

[Gav]

or if the op wants a definitave answer then he/she could fill it and then turn off the water then get a measuring vessle and spend all day at it!

[Ed Sirett]

This question is usually posed by someone who wishes to know how many tubs of inhibitor to buy. The answer is than one tub does a 'normal' sized house. Which is one tub more than many of the less thorough installers use.